Which of the following is a non-financial benefit of employment?

The correct answer is friendships, as it highlights a crucial non-financial benefit of employment. Forming friendships in the workplace can significantly enhance one's job satisfaction and overall well-being. A supportive network of colleagues can lead to a positive work environment, making tasks more enjoyable and less stressful. This social aspect can also foster teamwork, improve communication, and create a sense of belonging, which contributes to an individual's mental and emotional health.

On the other hand, options like increased salary, health insurance, and retirement plans are all tangible financial benefits. They involve monetary compensation or financial security that directly impacts an employee's financial situation rather than their interpersonal relationships or emotional fulfillment in the workplace. Therefore, friendships stand out as a key non-financial benefit that positively influences the work experience.